Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of spiral is as below...

Parastichy :: Parastichy (n.) A secondary spiral in phyllotaxy, as one of the evident spirals in a pine cone..

Creeper :: Creeper (n.) Any device for causing material to move steadily from one part of a machine to another, as an apron in a carding machine, or an inner spiral in a grain screen..

Triton :: Triton (n.) Any one of many species of marine gastropods belonging to Triton and allied genera, having a stout spiral shell, often handsomely colored and ornamented with prominent varices. Some of the species are among the largest of all gastropods. Called also trumpet shell, and sea trumpet..

Umbilicus :: Umbilicus (n.) A depression or opening in the center of the base of many spiral shells.

Heliciform :: Heliciform (a.) Having the form of a helix; spiral.

Helicine :: Helicine (a.) Curled; spiral; helicoid; -- applied esp. to certain arteries of the penis.

Helical :: Helical (a.) Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring..

Fusee :: Fusee (n.) The cone or conical wheel of a watch or clock, designed to equalize the power of the mainspring by having the chain from the barrel which contains the spring wind in a spiral groove on the surface of the cone in such a manner that the diameter of the cone at the point where the chain acts may correspond with the degree of tension of the spring..

Rissoid :: Rissoid (n.) Any one of very numerous species of small spiral gastropods of the genus Rissoa, or family Rissoidae, found both in fresh and salt water..

Antlia :: Antlia (n.) The spiral tubular proboscis of lepidopterous insects. See Lepidoptera.

Reversed :: Reversed (a.) Turned side for side, or end for end; changed to the contrary; specifically (Bot. & Zool.), sinistrorse or sinistral; as, a reversed, or sinistral, spiral or shell..

Helicograph :: Helicograph (n.) An instrument for drawing spiral lines on a plane.

Conveyor :: Conveyor (n.) A contrivance for carrying objects from place to place; esp., one for conveying grain, coal, etc., -- as a spiral or screw turning in a pipe or trough, an endless belt with buckets, or a truck running along a rope..

Spiring :: Spirillum (n.) A genus of common motile microorganisms (Spirobacteria) having the form of spiral-shaped filaments. One species is said to be the cause of relapsing fever.

Curl :: Curl (v. i.) To move in curves, spirals, or undulations; to contract in curving outlines; to bend in a curved form; to make a curl or curls..

Volute :: Volute (n.) A spiral turn, as in certain shells..

Coronated :: Coronated (a.) Girt about the spire with a row of tubercles or spines; -- said of spiral shells.

Scroll :: Scroll (n.) An ornament formed of undulations giving off spirals or sprays, usually suggestive of plant form. Roman architectural ornament is largely of some scroll pattern..

Turritella :: Turritella (n.) Any spiral marine gastropod belonging to Turritella and allied genera. These mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum..

Spirant :: Spiralozooid (n.) One of the special defensive zooids of certain hydroids. They have the form of long, slender tentacles, and bear lasso cells..

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